The murder took place in South River, New Jersey. Michael Behn, who had no previous criminal record, was accused of the execution-style shooting of a coin dealer in order to steal $40,000 worth of rare coins. Police found the coins at the home of Behn's mother. He told them he bought the coins from the murdered coin dealer, Robert Rose, the day he was killed.

"At trial, prosecutors produced no eyewitness, no fingerprint, no murder weapon. But an FBI examiner testified that bullets found in Michael Behn's office and the bullets that had killed the coin dealer, quote, 'came from the same source of lead at the manufacturer, so they were manufactured on our about the same date'." This process is called "comparative bullet lead analysis" or CBLA and the FBI was the only lab in the country that performed it. By testing bullets for tiny amounts of impurities, FBI...Read More